openownership
Support for vertical diagrams
The visual language rules allow for horizontal and vertical diagrams.
Is it possible to implement a simple switch to choose between these layout options?
I took a quick look at this today, there's a simple switch in terms of the underlying options we give to dagre-d3, but doing so breaks the offset paths we use to draw ownership & control separately. Specifically the offset doesn't work any more, so we just get a single line instead of two visible.
Technically, it seems like there's some divide-by-zero issue, either in code which turns our SVG path into a bezier curve, or in the code that then offsets the curve.
The solution to this seems non-trivial, I think it's basically because dagre-d3 doesn't draw continuous curves, they have little straight bits coming out of the nodes. I'm not sure why this isn't a problem on horizontal layouts though.
